The determination of pyruvic acid

Pyruvic Acid I. Collection of Blood for the Determination of Pyruvic and Lactic Acids*

The accurate determination of pyruvic and lactic acids is a matter of considerable theoretical and practical importance. These acids play a role in the metabolism of carbohydrates, and they are found in increased concentration in the blood in conditions of thiamine deficiency. Recently we suggested (1) the determination of the ratio of lactic to pyruvic acid in the blood as a measure of oxidati...

The Determination of Pyruvic Acid in Blood in the Presence of Acetoacetic Acid

Photochemistry of aqueous pyruvic acid.

The study of organic chemistry in atmospheric aerosols and cloud formation is of interest in predictions of air quality and climate change. It is now known that aqueous phase chemistry is important in the formation of secondary organic aerosols. Here, the photoreactivity of pyruvic acid (PA; CH3COCOOH) is investigated in aqueous environments characteristic of atmospheric aerosols. PA is current...

Modified method for the determination of pyruvic acid with dinitrophenylhydrazine in the assessment of onion pungency

Modifications to the commonly used Schwimmer and Weston procedure for determining pyruvic acid in onions are proposed. These modifications involve changes in the concentrations and volumes of the reagents and the use of 515 rather than 420 nm as the wavelength for measurements. These changes improve both the linearity and the sensitivity of the assay and eliminate interference from coloured mat...

Cxlvi. the Determination of Pyruvic Acid. by Basettihalli Hanumantha Rao Krishna and Motnahalli Sreenivasaya

THE methods employed for the estimation of pyruvic acid are largely based upon the reaction of its carbonyl group with phenylhydrazine. Its estimation in complex biological fluids where there are other compounds which react likewise is therefore difficult and, particularly when pyruvic acid exists in small quantities amidst these compounds, the estimation is unreliable even when controls are ru...